W. Day
Key Takeaway
W. Day is classified as low hazard in South Dakota. It was completed in 1945 and is 81 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 16 ft (taller than 15.7% in SD) |
| Dam Length | 750 ft |
| Dam Type | Earth |
| Max Storage | 192 acre-ft |
| Normal Storage | 104 acre-ft |
| Max Discharge | 375 cfs |
| Year Completed | 1945 (81 years old) |
| NID ID | SD00443 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
W. DAY
Private
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Significant Hazard 17 ftFrequently Asked Questions
What is the hazard classification of W. Day?
W. Day is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates W. Day?
W. Day is owned by W. DAY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was W. Day built?
W. Day was completed in 1945, making it 81 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of W. Day?
W. Day serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is W. Day?
W. Day has a dam height of 16 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.